gdb/gdbarch.h

   1 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
   2
   3 /* Dynamic architecture support for GDB, the GNU debugger.
   4
   5    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
   6    Free Software Foundation, Inc.
   7
   8    This file is part of GDB.
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor,
  23    Boston, MA 02110-1301, USA.  */
  24
  25 /* This file was created with the aid of ``gdbarch.sh''.
  26
  27    The Bourne shell script ``gdbarch.sh'' creates the files
  28    ``new-gdbarch.c'' and ``new-gdbarch.h and then compares them
  29    against the existing ``gdbarch.[hc]''.  Any differences found
  30    being reported.
  31
  32    If editing this file, please also run gdbarch.sh and merge any
  33    changes into that script. Conversely, when making sweeping changes
  34    to this file, modifying gdbarch.sh and using its output may prove
  35    easier. */
  36
  37 #ifndef GDBARCH_H
  38 #define GDBARCH_H
  39
  40 struct floatformat;
  41 struct ui_file;
  42 struct frame_info;
  43 struct value;
  44 struct objfile;
  45 struct obj_section;
  46 struct minimal_symbol;
  47 struct regcache;
  48 struct reggroup;
  49 struct regset;
  50 struct disassemble_info;
  51 struct target_ops;
  52 struct obstack;
  53 struct bp_target_info;
  54 struct target_desc;
  55
  56 extern struct gdbarch *current_gdbarch;
  57
  58
  59 /* The following are pre-initialized by GDBARCH. */
  60
  61 extern const struct bfd_arch_info * gdbarch_bfd_arch_info (struct gdbarch *gdbarch);
  62 /* set_gdbarch_bfd_arch_info() - not applicable - pre-initialized. */
  63
  64 extern int gdbarch_byte_order (struct gdbarch *gdbarch);
  65 /* set_gdbarch_byte_order() - not applicable - pre-initialized. */
  66
  67 extern enum gdb_osabi gdbarch_osabi (struct gdbarch *gdbarch);
  68 /* set_gdbarch_osabi() - not applicable - pre-initialized. */
  69
  70 extern const struct target_desc * gdbarch_target_desc (struct gdbarch *gdbarch);
  71 /* set_gdbarch_target_desc() - not applicable - pre-initialized. */
  72
  73
  74 /* The following are initialized by the target dependent code. */
  75
  76 /* Number of bits in a char or unsigned char for the target machine.
  77    Just like CHAR_BIT in <limits.h> but describes the target machine.
  78    v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0:
  79
  80    Number of bits in a short or unsigned short for the target machine. */
  81
  82 extern int gdbarch_short_bit (struct gdbarch *gdbarch);
  83 extern void set_gdbarch_short_bit (struct gdbarch *gdbarch, int short_bit);
  84
  85 /* Number of bits in an int or unsigned int for the target machine. */
  86
  87 extern int gdbarch_int_bit (struct gdbarch *gdbarch);
  88 extern void set_gdbarch_int_bit (struct gdbarch *gdbarch, int int_bit);
  89
  90 /* Number of bits in a long or unsigned long for the target machine. */
  91
  92 extern int gdbarch_long_bit (struct gdbarch *gdbarch);
  93 extern void set_gdbarch_long_bit (struct gdbarch *gdbarch, int long_bit);
  94
  95 /* Number of bits in a long long or unsigned long long for the target
  96    machine. */
  97
  98 extern int gdbarch_long_long_bit (struct gdbarch *gdbarch);
  99 extern void set_gdbarch_long_long_bit (struct gdbarch *gdbarch, int long_long_bit);
 100
 101 /* The ABI default bit-size and format for "float", "double", and "long
 102    double".  These bit/format pairs should eventually be combined into
 103    a single object.  For the moment, just initialize them as a pair.
 104    Each format describes both the big and little endian layouts (if
 105    useful). */
 106
 107 extern int gdbarch_float_bit (struct gdbarch *gdbarch);
 108 extern void set_gdbarch_float_bit (struct gdbarch *gdbarch, int float_bit);
 109
 110 extern const struct floatformat ** gdbarch_float_format (struct gdbarch *gdbarch);
 111 extern void set_gdbarch_float_format (struct gdbarch *gdbarch, const struct floatformat ** float_format);
 112
 113 extern int gdbarch_double_bit (struct gdbarch *gdbarch);
 114 extern void set_gdbarch_double_bit (struct gdbarch *gdbarch, int double_bit);
 115
 116 extern const struct floatformat ** gdbarch_double_format (struct gdbarch *gdbarch);
 117 extern void set_gdbarch_double_format (struct gdbarch *gdbarch, const struct floatformat ** double_format);
 118
 119 extern int gdbarch_long_double_bit (struct gdbarch *gdbarch);
 120 extern void set_gdbarch_long_double_bit (struct gdbarch *gdbarch, int long_double_bit);
 121
 122 extern const struct floatformat ** gdbarch_long_double_format (struct gdbarch *gdbarch);
 123 extern void set_gdbarch_long_double_format (struct gdbarch *gdbarch, const struct floatformat ** long_double_format);
 124
 125 /* For most targets, a pointer on the target and its representation as an
 126    address in GDB have the same size and "look the same".  For such a
 127    target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit
 128    / addr_bit will be set from it.
 129
 130    If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably
 131    also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer
 132    as well.
 133
 134    ptr_bit is the size of a pointer on the target */
 135
 136 extern int gdbarch_ptr_bit (struct gdbarch *gdbarch);
 137 extern void set_gdbarch_ptr_bit (struct gdbarch *gdbarch, int ptr_bit);
 138
 139 /* addr_bit is the size of a target address as represented in gdb */
 140
 141 extern int gdbarch_addr_bit (struct gdbarch *gdbarch);
 142 extern void set_gdbarch_addr_bit (struct gdbarch *gdbarch, int addr_bit);
 143
 144 /* Number of bits in a BFD_VMA for the target object file format. */
 145
 146 extern int gdbarch_bfd_vma_bit (struct gdbarch *gdbarch);
 147 extern void set_gdbarch_bfd_vma_bit (struct gdbarch *gdbarch, int bfd_vma_bit);
 148
 149 /* One if `char' acts like `signed char', zero if `unsigned char'. */
 150
 151 extern int gdbarch_char_signed (struct gdbarch *gdbarch);
 152 extern void set_gdbarch_char_signed (struct gdbarch *gdbarch, int char_signed);
 153
 154 #if defined (TARGET_READ_PC)
 155 /* Legacy for systems yet to multi-arch TARGET_READ_PC */
 156 #if !defined (TARGET_READ_PC_P)
 157 #define TARGET_READ_PC_P() (1)
 158 #endif
 159 #endif
 160
 161 extern int gdbarch_read_pc_p (struct gdbarch *gdbarch);
 162 #if !defined (GDB_TM_FILE) && defined (TARGET_READ_PC_P)
 163 #error "Non multi-arch definition of TARGET_READ_PC"
 164 #endif
 165 #if !defined (TARGET_READ_PC_P)
 166 #define TARGET_READ_PC_P() (gdbarch_read_pc_p (current_gdbarch))
 167 #endif
 168
 169 typedef CORE_ADDR (gdbarch_read_pc_ftype) (ptid_t ptid);
 170 extern CORE_ADDR gdbarch_read_pc (struct gdbarch *gdbarch, ptid_t ptid);
 171 extern void set_gdbarch_read_pc (struct gdbarch *gdbarch, gdbarch_read_pc_ftype *read_pc);
 172 #if !defined (GDB_TM_FILE) && defined (TARGET_READ_PC)
 173 #error "Non multi-arch definition of TARGET_READ_PC"
 174 #endif
 175 #if !defined (TARGET_READ_PC)
 176 #define TARGET_READ_PC(ptid) (gdbarch_read_pc (current_gdbarch, ptid))
 177 #endif
 178
 179 typedef void (gdbarch_write_pc_ftype) (CORE_ADDR val, ptid_t ptid);
 180 extern void gdbarch_write_pc (struct gdbarch *gdbarch, CORE_ADDR val, ptid_t ptid);
 181 extern void set_gdbarch_write_pc (struct gdbarch *gdbarch, gdbarch_write_pc_ftype *write_pc);
 182 #if !defined (GDB_TM_FILE) && defined (TARGET_WRITE_PC)
 183 #error "Non multi-arch definition of TARGET_WRITE_PC"
 184 #endif
 185 #if !defined (TARGET_WRITE_PC)
 186 #define TARGET_WRITE_PC(val, ptid) (gdbarch_write_pc (current_gdbarch, val, ptid))
 187 #endif
 188
 189 /* Function for getting target's idea of a frame pointer.  FIXME: GDB's
 190    whole scheme for dealing with "frames" and "frame pointers" needs a
 191    serious shakedown. */
 192
 193 typedef void (gdbarch_virtual_frame_pointer_ftype) (CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 194 extern void gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset);
 195 extern void set_gdbarch_virtual_frame_pointer (struct gdbarch *gdbarch, gdbarch_virtual_frame_pointer_ftype *virtual_frame_pointer);
 196
 197 extern int gdbarch_pseudo_register_read_p (struct gdbarch *gdbarch);
 198
 199 typedef void (gdbarch_pseudo_register_read_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 200 extern void gdbarch_pseudo_register_read (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, gdb_byte *buf);
 201 extern void set_gdbarch_pseudo_register_read (struct gdbarch *gdbarch, gdbarch_pseudo_register_read_ftype *pseudo_register_read);
 202
 203 extern int gdbarch_pseudo_register_write_p (struct gdbarch *gdbarch);
 204
 205 typedef void (gdbarch_pseudo_register_write_ftype) (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 206 extern void gdbarch_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, int cookednum, const gdb_byte *buf);
 207 extern void set_gdbarch_pseudo_register_write (struct gdbarch *gdbarch, gdbarch_pseudo_register_write_ftype *pseudo_register_write);
 208
 209 extern int gdbarch_num_regs (struct gdbarch *gdbarch);
 210 extern void set_gdbarch_num_regs (struct gdbarch *gdbarch, int num_regs);
 211
 212 /* This macro gives the number of pseudo-registers that live in the
 213    register namespace but do not get fetched or stored on the target.
 214    These pseudo-registers may be aliases for other registers,
 215    combinations of other registers, or they may be computed by GDB. */
 216
 217 extern int gdbarch_num_pseudo_regs (struct gdbarch *gdbarch);
 218 extern void set_gdbarch_num_pseudo_regs (struct gdbarch *gdbarch, int num_pseudo_regs);
 219
 220 /* GDB's standard (or well known) register numbers.  These can map onto
 221    a real register or a pseudo (computed) register or not be defined at
 222    all (-1).
 223    SP_REGNUM will hopefully be replaced by UNWIND_SP. */
 224
 225 extern int gdbarch_sp_regnum (struct gdbarch *gdbarch);
 226 extern void set_gdbarch_sp_regnum (struct gdbarch *gdbarch, int sp_regnum);
 227 #if !defined (GDB_TM_FILE) && defined (SP_REGNUM)
 228 #error "Non multi-arch definition of SP_REGNUM"
 229 #endif
 230 #if !defined (SP_REGNUM)
 231 #define SP_REGNUM (gdbarch_sp_regnum (current_gdbarch))
 232 #endif
 233
 234 extern int gdbarch_pc_regnum (struct gdbarch *gdbarch);
 235 extern void set_gdbarch_pc_regnum (struct gdbarch *gdbarch, int pc_regnum);
 236 #if !defined (GDB_TM_FILE) && defined (PC_REGNUM)
 237 #error "Non multi-arch definition of PC_REGNUM"
 238 #endif
 239 #if !defined (PC_REGNUM)
 240 #define PC_REGNUM (gdbarch_pc_regnum (current_gdbarch))
 241 #endif
 242
 243 extern int gdbarch_ps_regnum (struct gdbarch *gdbarch);
 244 extern void set_gdbarch_ps_regnum (struct gdbarch *gdbarch, int ps_regnum);
 245 #if !defined (GDB_TM_FILE) && defined (PS_REGNUM)
 246 #error "Non multi-arch definition of PS_REGNUM"
 247 #endif
 248 #if !defined (PS_REGNUM)
 249 #define PS_REGNUM (gdbarch_ps_regnum (current_gdbarch))
 250 #endif
 251
 252 extern int gdbarch_fp0_regnum (struct gdbarch *gdbarch);
 253 extern void set_gdbarch_fp0_regnum (struct gdbarch *gdbarch, int fp0_regnum);
 254 #if !defined (GDB_TM_FILE) && defined (FP0_REGNUM)
 255 #error "Non multi-arch definition of FP0_REGNUM"
 256 #endif
 257 #if !defined (FP0_REGNUM)
 258 #define FP0_REGNUM (gdbarch_fp0_regnum (current_gdbarch))
 259 #endif
 260
 261 /* Convert stab register number (from `r' declaration) to a gdb REGNUM. */
 262
 263 typedef int (gdbarch_stab_reg_to_regnum_ftype) (int stab_regnr);
 264 extern int gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, int stab_regnr);
 265 extern void set_gdbarch_stab_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_stab_reg_to_regnum_ftype *stab_reg_to_regnum);
 266
 267 /* Provide a default mapping from a ecoff register number to a gdb REGNUM. */
 268
 269 typedef int (gdbarch_ecoff_reg_to_regnum_ftype) (int ecoff_regnr);
 270 extern int gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, int ecoff_regnr);
 271 extern void set_gdbarch_ecoff_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_ecoff_reg_to_regnum_ftype *ecoff_reg_to_regnum);
 272
 273 /* Provide a default mapping from a DWARF register number to a gdb REGNUM. */
 274
 275 typedef int (gdbarch_dwarf_reg_to_regnum_ftype) (int dwarf_regnr);
 276 extern int gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, int dwarf_regnr);
 277 extern void set_gdbarch_dwarf_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf_reg_to_regnum_ftype *dwarf_reg_to_regnum);
 278
 279 /* Convert from an sdb register number to an internal gdb register number. */
 280
 281 typedef int (gdbarch_sdb_reg_to_regnum_ftype) (int sdb_regnr);
 282 extern int gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, int sdb_regnr);
 283 extern void set_gdbarch_sdb_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_sdb_reg_to_regnum_ftype *sdb_reg_to_regnum);
 284
 285 typedef int (gdbarch_dwarf2_reg_to_regnum_ftype) (int dwarf2_regnr);
 286 extern int gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int dwarf2_regnr);
 287 extern void set_gdbarch_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, gdbarch_dwarf2_reg_to_regnum_ftype *dwarf2_reg_to_regnum);
 288
 289 typedef const char * (gdbarch_register_name_ftype) (int regnr);
 290 extern const char * gdbarch_register_name (struct gdbarch *gdbarch, int regnr);
 291 extern void set_gdbarch_register_name (struct gdbarch *gdbarch, gdbarch_register_name_ftype *register_name);
 292
 293 /* Return the type of a register specified by the architecture.  Only
 294    the register cache should call this function directly; others should
 295    use "register_type". */
 296
 297 extern int gdbarch_register_type_p (struct gdbarch *gdbarch);
 298
 299 typedef struct type * (gdbarch_register_type_ftype) (struct gdbarch *gdbarch, int reg_nr);
 300 extern struct type * gdbarch_register_type (struct gdbarch *gdbarch, int reg_nr);
 301 extern void set_gdbarch_register_type (struct gdbarch *gdbarch, gdbarch_register_type_ftype *register_type);
 302
 303 /* See gdbint.texinfo, and PUSH_DUMMY_CALL. */
 304
 305 extern int gdbarch_unwind_dummy_id_p (struct gdbarch *gdbarch);
 306
 307 typedef struct frame_id (gdbarch_unwind_dummy_id_ftype) (struct gdbarch *gdbarch, struct frame_info *info);
 308 extern struct frame_id gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, struct frame_info *info);
 309 extern void set_gdbarch_unwind_dummy_id (struct gdbarch *gdbarch, gdbarch_unwind_dummy_id_ftype *unwind_dummy_id);
 310
 311 /* Implement UNWIND_DUMMY_ID and PUSH_DUMMY_CALL, then delete
 312    DEPRECATED_FP_REGNUM. */
 313
 314 extern int gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch);
 315 extern void set_gdbarch_deprecated_fp_regnum (struct gdbarch *gdbarch, int deprecated_fp_regnum);
 316 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_FP_REGNUM)
 317 #error "Non multi-arch definition of DEPRECATED_FP_REGNUM"
 318 #endif
 319 #if !defined (DEPRECATED_FP_REGNUM)
 320 #define DEPRECATED_FP_REGNUM (gdbarch_deprecated_fp_regnum (current_gdbarch))
 321 #endif
 322
 323 /* See gdbint.texinfo.  See infcall.c. */
 324
 325 extern int gdbarch_push_dummy_call_p (struct gdbarch *gdbarch);
 326
 327 typedef CORE_ADDR (gdbarch_push_dummy_call_ftype) (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr);
 328 extern CORE_ADDR gdbarch_push_dummy_call (struct gdbarch *gdbarch, struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr);
 329 extern void set_gdbarch_push_dummy_call (struct gdbarch *gdbarch, gdbarch_push_dummy_call_ftype *push_dummy_call);
 330
 331 /* DEPRECATED_REGISTER_SIZE can be deleted. */
 332
 333 extern int gdbarch_deprecated_register_size (struct gdbarch *gdbarch);
 334 extern void set_gdbarch_deprecated_register_size (struct gdbarch *gdbarch, int deprecated_register_size);
 335 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REGISTER_SIZE)
 336 #error "Non multi-arch definition of DEPRECATED_REGISTER_SIZE"
 337 #endif
 338 #if !defined (DEPRECATED_REGISTER_SIZE)
 339 #define DEPRECATED_REGISTER_SIZE (gdbarch_deprecated_register_size (current_gdbarch))
 340 #endif
 341
 342 extern int gdbarch_call_dummy_location (struct gdbarch *gdbarch);
 343 extern void set_gdbarch_call_dummy_location (struct gdbarch *gdbarch, int call_dummy_location);
 344
 345 extern int gdbarch_push_dummy_code_p (struct gdbarch *gdbarch);
 346
 347 typedef CORE_ADDR (gdbarch_push_dummy_code_ftype) (struct gdbarch *gdbarch, CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr);
 348 extern CORE_ADDR gdbarch_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp, CORE_ADDR funaddr, int using_gcc, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr);
 349 extern void set_gdbarch_push_dummy_code (struct gdbarch *gdbarch, gdbarch_push_dummy_code_ftype *push_dummy_code);
 350
 351 typedef void (gdbarch_print_registers_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 352 extern void gdbarch_print_registers_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, int regnum, int all);
 353 extern void set_gdbarch_print_registers_info (struct gdbarch *gdbarch, gdbarch_print_registers_info_ftype *print_registers_info);
 354
 355 extern int gdbarch_print_float_info_p (struct gdbarch *gdbarch);
 356
 357 typedef void (gdbarch_print_float_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 358 extern void gdbarch_print_float_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 359 extern void set_gdbarch_print_float_info (struct gdbarch *gdbarch, gdbarch_print_float_info_ftype *print_float_info);
 360
 361 extern int gdbarch_print_vector_info_p (struct gdbarch *gdbarch);
 362
 363 typedef void (gdbarch_print_vector_info_ftype) (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 364 extern void gdbarch_print_vector_info (struct gdbarch *gdbarch, struct ui_file *file, struct frame_info *frame, const char *args);
 365 extern void set_gdbarch_print_vector_info (struct gdbarch *gdbarch, gdbarch_print_vector_info_ftype *print_vector_info);
 366
 367 /* MAP a GDB RAW register number onto a simulator register number.  See
 368    also include/...-sim.h. */
 369
 370 typedef int (gdbarch_register_sim_regno_ftype) (int reg_nr);
 371 extern int gdbarch_register_sim_regno (struct gdbarch *gdbarch, int reg_nr);
 372 extern void set_gdbarch_register_sim_regno (struct gdbarch *gdbarch, gdbarch_register_sim_regno_ftype *register_sim_regno);
 373
 374 typedef int (gdbarch_cannot_fetch_register_ftype) (int regnum);
 375 extern int gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, int regnum);
 376 extern void set_gdbarch_cannot_fetch_register (struct gdbarch *gdbarch, gdbarch_cannot_fetch_register_ftype *cannot_fetch_register);
 377
 378 typedef int (gdbarch_cannot_store_register_ftype) (int regnum);
 379 extern int gdbarch_cannot_store_register (struct gdbarch *gdbarch, int regnum);
 380 extern void set_gdbarch_cannot_store_register (struct gdbarch *gdbarch, gdbarch_cannot_store_register_ftype *cannot_store_register);
 381
 382 /* setjmp/longjmp support. */
 383
 384 extern int gdbarch_get_longjmp_target_p (struct gdbarch *gdbarch);
 385
 386 typedef int (gdbarch_get_longjmp_target_ftype) (CORE_ADDR *pc);
 387 extern int gdbarch_get_longjmp_target (struct gdbarch *gdbarch, CORE_ADDR *pc);
 388 extern void set_gdbarch_get_longjmp_target (struct gdbarch *gdbarch, gdbarch_get_longjmp_target_ftype *get_longjmp_target);
 389
 390 extern int gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch);
 391 extern void set_gdbarch_believe_pcc_promotion (struct gdbarch *gdbarch, int believe_pcc_promotion);
 392 #if !defined (GDB_TM_FILE) && defined (BELIEVE_PCC_PROMOTION)
 393 #error "Non multi-arch definition of BELIEVE_PCC_PROMOTION"
 394 #endif
 395 #if !defined (BELIEVE_PCC_PROMOTION)
 396 #define BELIEVE_PCC_PROMOTION (gdbarch_believe_pcc_promotion (current_gdbarch))
 397 #endif
 398
 399 typedef int (gdbarch_convert_register_p_ftype) (int regnum, struct type *type);
 400 extern int gdbarch_convert_register_p (struct gdbarch *gdbarch, int regnum, struct type *type);
 401 extern void set_gdbarch_convert_register_p (struct gdbarch *gdbarch, gdbarch_convert_register_p_ftype *convert_register_p);
 402
 403 typedef void (gdbarch_register_to_value_ftype) (struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 404 extern void gdbarch_register_to_value (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf);
 405 extern void set_gdbarch_register_to_value (struct gdbarch *gdbarch, gdbarch_register_to_value_ftype *register_to_value);
 406
 407 typedef void (gdbarch_value_to_register_ftype) (struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 408 extern void gdbarch_value_to_register (struct gdbarch *gdbarch, struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf);
 409 extern void set_gdbarch_value_to_register (struct gdbarch *gdbarch, gdbarch_value_to_register_ftype *value_to_register);
 410
 411 /* Construct a value representing the contents of register REGNUM in
 412    frame FRAME, interpreted as type TYPE.  The routine needs to
 413    allocate and return a struct value with all value attributes
 414    (but not the value contents) filled in. */
 415
 416 typedef struct value * (gdbarch_value_from_register_ftype) (struct type *type, int regnum, struct frame_info *frame);
 417 extern struct value * gdbarch_value_from_register (struct gdbarch *gdbarch, struct type *type, int regnum, struct frame_info *frame);
 418 extern void set_gdbarch_value_from_register (struct gdbarch *gdbarch, gdbarch_value_from_register_ftype *value_from_register);
 419
 420 typedef CORE_ADDR (gdbarch_pointer_to_address_ftype) (struct type *type, const gdb_byte *buf);
 421 extern CORE_ADDR gdbarch_pointer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 422 extern void set_gdbarch_pointer_to_address (struct gdbarch *gdbarch, gdbarch_pointer_to_address_ftype *pointer_to_address);
 423
 424 typedef void (gdbarch_address_to_pointer_ftype) (struct type *type, gdb_byte *buf, CORE_ADDR addr);
 425 extern void gdbarch_address_to_pointer (struct gdbarch *gdbarch, struct type *type, gdb_byte *buf, CORE_ADDR addr);
 426 extern void set_gdbarch_address_to_pointer (struct gdbarch *gdbarch, gdbarch_address_to_pointer_ftype *address_to_pointer);
 427
 428 extern int gdbarch_integer_to_address_p (struct gdbarch *gdbarch);
 429
 430 typedef CORE_ADDR (gdbarch_integer_to_address_ftype) (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 431 extern CORE_ADDR gdbarch_integer_to_address (struct gdbarch *gdbarch, struct type *type, const gdb_byte *buf);
 432 extern void set_gdbarch_integer_to_address (struct gdbarch *gdbarch, gdbarch_integer_to_address_ftype *integer_to_address);
 433
 434 /* It has been suggested that this, well actually its predecessor,
 435    should take the type/value of the function to be called and not the
 436    return type.  This is left as an exercise for the reader.
 437    NOTE: cagney/2004-06-13: The function stack.c:return_command uses
 438    the predicate with default hack to avoid calling STORE_RETURN_VALUE
 439    (via legacy_return_value), when a small struct is involved. */
 440
 441 extern int gdbarch_return_value_p (struct gdbarch *gdbarch);
 442
 443 typedef enum return_value_convention (gdbarch_return_value_ftype) (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 444 extern enum return_value_convention gdbarch_return_value (struct gdbarch *gdbarch, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf);
 445 extern void set_gdbarch_return_value (struct gdbarch *gdbarch, gdbarch_return_value_ftype *return_value);
 446
 447 /* The deprecated methods EXTRACT_RETURN_VALUE, STORE_RETURN_VALUE,
 448    DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS and
 449    DEPRECATED_USE_STRUCT_CONVENTION have all been folded into
 450    RETURN_VALUE. */
 451
 452 typedef void (gdbarch_extract_return_value_ftype) (struct type *type, struct regcache *regcache, gdb_byte *valbuf);
 453 extern void gdbarch_extract_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, gdb_byte *valbuf);
 454 extern void set_gdbarch_extract_return_value (struct gdbarch *gdbarch, gdbarch_extract_return_value_ftype *extract_return_value);
 455 #if !defined (GDB_TM_FILE) && defined (EXTRACT_RETURN_VALUE)
 456 #error "Non multi-arch definition of EXTRACT_RETURN_VALUE"
 457 #endif
 458 #if !defined (EXTRACT_RETURN_VALUE)
 459 #define EXTRACT_RETURN_VALUE(type, regcache, valbuf) (gdbarch_extract_return_value (current_gdbarch, type, regcache, valbuf))
 460 #endif
 461
 462 typedef void (gdbarch_store_return_value_ftype) (struct type *type, struct regcache *regcache, const gdb_byte *valbuf);
 463 extern void gdbarch_store_return_value (struct gdbarch *gdbarch, struct type *type, struct regcache *regcache, const gdb_byte *valbuf);
 464 extern void set_gdbarch_store_return_value (struct gdbarch *gdbarch, gdbarch_store_return_value_ftype *store_return_value);
 465 #if !defined (GDB_TM_FILE) && defined (STORE_RETURN_VALUE)
 466 #error "Non multi-arch definition of STORE_RETURN_VALUE"
 467 #endif
 468 #if !defined (STORE_RETURN_VALUE)
 469 #define STORE_RETURN_VALUE(type, regcache, valbuf) (gdbarch_store_return_value (current_gdbarch, type, regcache, valbuf))
 470 #endif
 471
 472 typedef int (gdbarch_deprecated_use_struct_convention_ftype) (int gcc_p, struct type *value_type);
 473 extern int gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, int gcc_p, struct type *value_type);
 474 extern void set_gdbarch_deprecated_use_struct_convention (struct gdbarch *gdbarch, gdbarch_deprecated_use_struct_convention_ftype *deprecated_use_struct_convention);
 475 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_USE_STRUCT_CONVENTION)
 476 #error "Non multi-arch definition of DEPRECATED_USE_STRUCT_CONVENTION"
 477 #endif
 478 #if !defined (DEPRECATED_USE_STRUCT_CONVENTION)
 479 #define DEPRECATED_USE_STRUCT_CONVENTION(gcc_p, value_type) (gdbarch_deprecated_use_struct_convention (current_gdbarch, gcc_p, value_type))
 480 #endif
 481
 482 /* As of 2004-01-17 only the 32-bit SPARC ABI has been identified as an
 483    ABI suitable for the implementation of a robust extract
 484    struct-convention return-value address method (the sparc saves the
 485    address in the callers frame).  All the other cases so far examined,
 486    the DEPRECATED_EXTRACT_STRUCT_VALUE implementation has been
 487    erreneous - the code was incorrectly assuming that the return-value
 488    address, stored in a register, was preserved across the entire
 489    function call.
 490    For the moment retain DEPRECATED_EXTRACT_STRUCT_VALUE as a marker of
 491    the ABIs that are still to be analyzed - perhaps this should simply
 492    be deleted.  The commented out extract_returned_value_address method
 493    is provided as a starting point for the 32-bit SPARC.  It, or
 494    something like it, along with changes to both infcmd.c and stack.c
 495    will be needed for that case to work.  NB: It is passed the callers
 496    frame since it is only after the callee has returned that this
 497    function is used.
 498   M::CORE_ADDR:extract_returned_value_address:struct frame_info *caller_frame:caller_frame */
 499
 500 #if defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 501 /* Legacy for systems yet to multi-arch DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS */
 502 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 503 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P() (1)
 504 #endif
 505 #endif
 506
 507 extern int gdbarch_deprecated_extract_struct_value_address_p (struct gdbarch *gdbarch);
 508 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 509 #error "Non multi-arch definition of DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS"
 510 #endif
 511 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P)
 512 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS_P() (gdbarch_deprecated_extract_struct_value_address_p (current_gdbarch))
 513 #endif
 514
 515 typedef CORE_ADDR (gdbarch_deprecated_extract_struct_value_address_ftype) (struct regcache *regcache);
 516 extern CORE_ADDR gdbarch_deprecated_extract_struct_value_address (struct gdbarch *gdbarch, struct regcache *regcache);
 517 extern void set_gdbarch_deprecated_extract_struct_value_address (struct gdbarch *gdbarch, gdbarch_deprecated_extract_struct_value_address_ftype *deprecated_extract_struct_value_address);
 518 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 519 #error "Non multi-arch definition of DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS"
 520 #endif
 521 #if !defined (DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS)
 522 #define DEPRECATED_EXTRACT_STRUCT_VALUE_ADDRESS(regcache) (gdbarch_deprecated_extract_struct_value_address (current_gdbarch, regcache))
 523 #endif
 524
 525 typedef CORE_ADDR (gdbarch_skip_prologue_ftype) (CORE_ADDR ip);
 526 extern CORE_ADDR gdbarch_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR ip);
 527 extern void set_gdbarch_skip_prologue (struct gdbarch *gdbarch, gdbarch_skip_prologue_ftype *skip_prologue);
 528
 529 typedef int (gdbarch_inner_than_ftype) (CORE_ADDR lhs, CORE_ADDR rhs);
 530 extern int gdbarch_inner_than (struct gdbarch *gdbarch, CORE_ADDR lhs, CORE_ADDR rhs);
 531 extern void set_gdbarch_inner_than (struct gdbarch *gdbarch, gdbarch_inner_than_ftype *inner_than);
 532
 533 typedef const gdb_byte * (gdbarch_breakpoint_from_pc_ftype) (CORE_ADDR *pcptr, int *lenptr);
 534 extern const gdb_byte * gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pcptr, int *lenptr);
 535 extern void set_gdbarch_breakpoint_from_pc (struct gdbarch *gdbarch, gdbarch_breakpoint_from_pc_ftype *breakpoint_from_pc);
 536
 537 extern int gdbarch_adjust_breakpoint_address_p (struct gdbarch *gdbarch);
 538
 539 typedef CORE_ADDR (gdbarch_adjust_breakpoint_address_ftype) (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 540 extern CORE_ADDR gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr);
 541 extern void set_gdbarch_adjust_breakpoint_address (struct gdbarch *gdbarch, gdbarch_adjust_breakpoint_address_ftype *adjust_breakpoint_address);
 542
 543 typedef int (gdbarch_memory_insert_breakpoint_ftype) (struct bp_target_info *bp_tgt);
 544 extern int gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 545 extern void set_gdbarch_memory_insert_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_insert_breakpoint_ftype *memory_insert_breakpoint);
 546
 547 typedef int (gdbarch_memory_remove_breakpoint_ftype) (struct bp_target_info *bp_tgt);
 548 extern int gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, struct bp_target_info *bp_tgt);
 549 extern void set_gdbarch_memory_remove_breakpoint (struct gdbarch *gdbarch, gdbarch_memory_remove_breakpoint_ftype *memory_remove_breakpoint);
 550
 551 extern CORE_ADDR gdbarch_decr_pc_after_break (struct gdbarch *gdbarch);
 552 extern void set_gdbarch_decr_pc_after_break (struct gdbarch *gdbarch, CORE_ADDR decr_pc_after_break);
 553
 554 /* A function can be addressed by either it's "pointer" (possibly a
 555    descriptor address) or "entry point" (first executable instruction).
 556    The method "convert_from_func_ptr_addr" converting the former to the
 557    latter.  DEPRECATED_FUNCTION_START_OFFSET is being used to implement
 558    a simplified subset of that functionality - the function's address
 559    corresponds to the "function pointer" and the function's start
 560    corresponds to the "function entry point" - and hence is redundant. */
 561
 562 extern CORE_ADDR gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch);
 563 extern void set_gdbarch_deprecated_function_start_offset (struct gdbarch *gdbarch, CORE_ADDR deprecated_function_start_offset);
 564 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_FUNCTION_START_OFFSET)
 565 #error "Non multi-arch definition of DEPRECATED_FUNCTION_START_OFFSET"
 566 #endif
 567 #if !defined (DEPRECATED_FUNCTION_START_OFFSET)
 568 #define DEPRECATED_FUNCTION_START_OFFSET (gdbarch_deprecated_function_start_offset (current_gdbarch))
 569 #endif
 570
 571 /* Return the remote protocol register number associated with this
 572    register.  Normally the identity mapping. */
 573
 574 typedef int (gdbarch_remote_register_number_ftype) (struct gdbarch *gdbarch, int regno);
 575 extern int gdbarch_remote_register_number (struct gdbarch *gdbarch, int regno);
 576 extern void set_gdbarch_remote_register_number (struct gdbarch *gdbarch, gdbarch_remote_register_number_ftype *remote_register_number);
 577
 578 /* Fetch the target specific address used to represent a load module. */
 579
 580 extern int gdbarch_fetch_tls_load_module_address_p (struct gdbarch *gdbarch);
 581
 582 typedef CORE_ADDR (gdbarch_fetch_tls_load_module_address_ftype) (struct objfile *objfile);
 583 extern CORE_ADDR gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, struct objfile *objfile);
 584 extern void set_gdbarch_fetch_tls_load_module_address (struct gdbarch *gdbarch, gdbarch_fetch_tls_load_module_address_ftype *fetch_tls_load_module_address);
 585
 586 extern CORE_ADDR gdbarch_frame_args_skip (struct gdbarch *gdbarch);
 587 extern void set_gdbarch_frame_args_skip (struct gdbarch *gdbarch, CORE_ADDR frame_args_skip);
 588
 589 extern int gdbarch_unwind_pc_p (struct gdbarch *gdbarch);
 590
 591 typedef CORE_ADDR (gdbarch_unwind_pc_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 592 extern CORE_ADDR gdbarch_unwind_pc (struct gdbarch *gdbarch, struct frame_info *next_frame);
 593 extern void set_gdbarch_unwind_pc (struct gdbarch *gdbarch, gdbarch_unwind_pc_ftype *unwind_pc);
 594
 595 extern int gdbarch_unwind_sp_p (struct gdbarch *gdbarch);
 596
 597 typedef CORE_ADDR (gdbarch_unwind_sp_ftype) (struct gdbarch *gdbarch, struct frame_info *next_frame);
 598 extern CORE_ADDR gdbarch_unwind_sp (struct gdbarch *gdbarch, struct frame_info *next_frame);
 599 extern void set_gdbarch_unwind_sp (struct gdbarch *gdbarch, gdbarch_unwind_sp_ftype *unwind_sp);
 600
 601 /* DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame
 602    frame-base.  Enable frame-base before frame-unwind. */
 603
 604 extern int gdbarch_frame_num_args_p (struct gdbarch *gdbarch);
 605
 606 typedef int (gdbarch_frame_num_args_ftype) (struct frame_info *frame);
 607 extern int gdbarch_frame_num_args (struct gdbarch *gdbarch, struct frame_info *frame);
 608 extern void set_gdbarch_frame_num_args (struct gdbarch *gdbarch, gdbarch_frame_num_args_ftype *frame_num_args);
 609
 610 extern int gdbarch_frame_align_p (struct gdbarch *gdbarch);
 611
 612 typedef CORE_ADDR (gdbarch_frame_align_ftype) (struct gdbarch *gdbarch, CORE_ADDR address);
 613 extern CORE_ADDR gdbarch_frame_align (struct gdbarch *gdbarch, CORE_ADDR address);
 614 extern void set_gdbarch_frame_align (struct gdbarch *gdbarch, gdbarch_frame_align_ftype *frame_align);
 615
 616 /* DEPRECATED_REG_STRUCT_HAS_ADDR has been replaced by
 617    stabs_argument_has_addr. */
 618
 619 #if defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 620 /* Legacy for systems yet to multi-arch DEPRECATED_REG_STRUCT_HAS_ADDR */
 621 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 622 #define DEPRECATED_REG_STRUCT_HAS_ADDR_P() (1)
 623 #endif
 624 #endif
 625
 626 extern int gdbarch_deprecated_reg_struct_has_addr_p (struct gdbarch *gdbarch);
 627 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 628 #error "Non multi-arch definition of DEPRECATED_REG_STRUCT_HAS_ADDR"
 629 #endif
 630 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR_P)
 631 #define DEPRECATED_REG_STRUCT_HAS_ADDR_P() (gdbarch_deprecated_reg_struct_has_addr_p (current_gdbarch))
 632 #endif
 633
 634 typedef int (gdbarch_deprecated_reg_struct_has_addr_ftype) (int gcc_p, struct type *type);
 635 extern int gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, int gcc_p, struct type *type);
 636 extern void set_gdbarch_deprecated_reg_struct_has_addr (struct gdbarch *gdbarch, gdbarch_deprecated_reg_struct_has_addr_ftype *deprecated_reg_struct_has_addr);
 637 #if !defined (GDB_TM_FILE) && defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 638 #error "Non multi-arch definition of DEPRECATED_REG_STRUCT_HAS_ADDR"
 639 #endif
 640 #if !defined (DEPRECATED_REG_STRUCT_HAS_ADDR)
 641 #define DEPRECATED_REG_STRUCT_HAS_ADDR(gcc_p, type) (gdbarch_deprecated_reg_struct_has_addr (current_gdbarch, gcc_p, type))
 642 #endif
 643
 644 typedef int (gdbarch_stabs_argument_has_addr_ftype) (struct gdbarch *gdbarch, struct type *type);
 645 extern int gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type);
 646 extern void set_gdbarch_stabs_argument_has_addr (struct gdbarch *gdbarch, gdbarch_stabs_argument_has_addr_ftype *stabs_argument_has_addr);
 647
 648 extern int gdbarch_frame_red_zone_size (struct gdbarch *gdbarch);
 649 extern void set_gdbarch_frame_red_zone_size (struct gdbarch *gdbarch, int frame_red_zone_size);
 650
 651 typedef CORE_ADDR (gdbarch_convert_from_func_ptr_addr_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 652 extern CORE_ADDR gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, struct target_ops *targ);
 653 extern void set_gdbarch_convert_from_func_ptr_addr (struct gdbarch *gdbarch, gdbarch_convert_from_func_ptr_addr_ftype *convert_from_func_ptr_addr);
 654
 655 /* On some machines there are bits in addresses which are not really
 656    part of the address, but are used by the kernel, the hardware, etc.
 657    for special purposes.  gdbarch_addr_bits_remove takes out any such bits so
 658    we get a "real" address such as one would find in a symbol table.
 659    This is used only for addresses of instructions, and even then I'm
 660    not sure it's used in all contexts.  It exists to deal with there
 661    being a few stray bits in the PC which would mislead us, not as some
 662    sort of generic thing to handle alignment or segmentation (it's
 663    possible it should be in TARGET_READ_PC instead). */
 664
 665 typedef CORE_ADDR (gdbarch_addr_bits_remove_ftype) (CORE_ADDR addr);
 666 extern CORE_ADDR gdbarch_addr_bits_remove (struct gdbarch *gdbarch, CORE_ADDR addr);
 667 extern void set_gdbarch_addr_bits_remove (struct gdbarch *gdbarch, gdbarch_addr_bits_remove_ftype *addr_bits_remove);
 668
 669 /* It is not at all clear why gdbarch_smash_text_address is not folded into
 670    gdbarch_addr_bits_remove. */
 671
 672 typedef CORE_ADDR (gdbarch_smash_text_address_ftype) (CORE_ADDR addr);
 673 extern CORE_ADDR gdbarch_smash_text_address (struct gdbarch *gdbarch, CORE_ADDR addr);
 674 extern void set_gdbarch_smash_text_address (struct gdbarch *gdbarch, gdbarch_smash_text_address_ftype *smash_text_address);
 675
 676 /* FIXME/cagney/2001-01-18: This should be split in two.  A target method that
 677    indicates if the target needs software single step.  An ISA method to
 678    implement it.
 679
 680    FIXME/cagney/2001-01-18: This should be replaced with something that inserts
 681    breakpoints using the breakpoint system instead of blatting memory directly
 682    (as with rs6000).
 683
 684    FIXME/cagney/2001-01-18: The logic is backwards.  It should be asking if the
 685    target can single step.  If not, then implement single step using breakpoints.
 686
 687    A return value of 1 means that the software_single_step breakpoints
 688    were inserted; 0 means they were not. */
 689
 690 #if defined (SOFTWARE_SINGLE_STEP)
 691 /* Legacy for systems yet to multi-arch SOFTWARE_SINGLE_STEP */
 692 #if !defined (SOFTWARE_SINGLE_STEP_P)
 693 #define SOFTWARE_SINGLE_STEP_P() (1)
 694 #endif
 695 #endif
 696
 697 extern int gdbarch_software_single_step_p (struct gdbarch *gdbarch);
 698 #if !defined (GDB_TM_FILE) && defined (SOFTWARE_SINGLE_STEP_P)
 699 #error "Non multi-arch definition of SOFTWARE_SINGLE_STEP"
 700 #endif
 701 #if !defined (SOFTWARE_SINGLE_STEP_P)
 702 #define SOFTWARE_SINGLE_STEP_P() (gdbarch_software_single_step_p (current_gdbarch))
 703 #endif
 704
 705 typedef int (gdbarch_software_single_step_ftype) (struct frame_info *frame);
 706 extern int gdbarch_software_single_step (struct gdbarch *gdbarch, struct frame_info *frame);
 707 extern void set_gdbarch_software_single_step (struct gdbarch *gdbarch, gdbarch_software_single_step_ftype *software_single_step);
 708 #if !defined (GDB_TM_FILE) && defined (SOFTWARE_SINGLE_STEP)
 709 #error "Non multi-arch definition of SOFTWARE_SINGLE_STEP"
 710 #endif
 711 #if !defined (SOFTWARE_SINGLE_STEP)
 712 #define SOFTWARE_SINGLE_STEP(frame) (gdbarch_software_single_step (current_gdbarch, frame))
 713 #endif
 714
 715 /* Return non-zero if the processor is executing a delay slot and a
 716    further single-step is needed before the instruction finishes. */
 717
 718 extern int gdbarch_single_step_through_delay_p (struct gdbarch *gdbarch);
 719
 720 typedef int (gdbarch_single_step_through_delay_ftype) (struct gdbarch *gdbarch, struct frame_info *frame);
 721 extern int gdbarch_single_step_through_delay (struct gdbarch *gdbarch, struct frame_info *frame);
 722 extern void set_gdbarch_single_step_through_delay (struct gdbarch *gdbarch, gdbarch_single_step_through_delay_ftype *single_step_through_delay);
 723
 724 /* FIXME: cagney/2003-08-28: Need to find a better way of selecting the
 725    disassembler.  Perhaps objdump can handle it? */
 726
 727 typedef int (gdbarch_print_insn_ftype) (bfd_vma vma, struct disassemble_info *info);
 728 extern int gdbarch_print_insn (struct gdbarch *gdbarch, bfd_vma vma, struct disassemble_info *info);
 729 extern void set_gdbarch_print_insn (struct gdbarch *gdbarch, gdbarch_print_insn_ftype *print_insn);
 730 #if !defined (GDB_TM_FILE) && defined (TARGET_PRINT_INSN)
 731 #error "Non multi-arch definition of TARGET_PRINT_INSN"
 732 #endif
 733 #if !defined (TARGET_PRINT_INSN)
 734 #define TARGET_PRINT_INSN(vma, info) (gdbarch_print_insn (current_gdbarch, vma, info))
 735 #endif
 736
 737 typedef CORE_ADDR (gdbarch_skip_trampoline_code_ftype) (CORE_ADDR pc);
 738 extern CORE_ADDR gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, CORE_ADDR pc);
 739 extern void set_gdbarch_skip_trampoline_code (struct gdbarch *gdbarch, gdbarch_skip_trampoline_code_ftype *skip_trampoline_code);
 740
 741 /* If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER
 742    evaluates non-zero, this is the address where the debugger will place
 743    a step-resume breakpoint to get us past the dynamic linker. */
 744
 745 typedef CORE_ADDR (gdbarch_skip_solib_resolver_ftype) (struct gdbarch *gdbarch, CORE_ADDR pc);
 746 extern CORE_ADDR gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, CORE_ADDR pc);
 747 extern void set_gdbarch_skip_solib_resolver (struct gdbarch *gdbarch, gdbarch_skip_solib_resolver_ftype *skip_solib_resolver);
 748
 749 /* Some systems also have trampoline code for returning from shared libs. */
 750
 751 typedef int (gdbarch_in_solib_return_trampoline_ftype) (CORE_ADDR pc, char *name);
 752 extern int gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, CORE_ADDR pc, char *name);
 753 extern void set_gdbarch_in_solib_return_trampoline (struct gdbarch *gdbarch, gdbarch_in_solib_return_trampoline_ftype *in_solib_return_trampoline);
 754
 755 /* A target might have problems with watchpoints as soon as the stack
 756    frame of the current function has been destroyed.  This mostly happens
 757    as the first action in a funtion's epilogue.  in_function_epilogue_p()
 758    is defined to return a non-zero value if either the given addr is one
 759    instruction after the stack destroying instruction up to the trailing
 760    return instruction or if we can figure out that the stack frame has
 761    already been invalidated regardless of the value of addr.  Targets
 762    which don't suffer from that problem could just let this functionality
 763    untouched. */
 764
 765 typedef int (gdbarch_in_function_epilogue_p_ftype) (struct gdbarch *gdbarch, CORE_ADDR addr);
 766 extern int gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, CORE_ADDR addr);
 767 extern void set_gdbarch_in_function_epilogue_p (struct gdbarch *gdbarch, gdbarch_in_function_epilogue_p_ftype *in_function_epilogue_p);
 768
 769 /* Given a vector of command-line arguments, return a newly allocated
 770    string which, when passed to the create_inferior function, will be
 771    parsed (on Unix systems, by the shell) to yield the same vector.
 772    This function should call error() if the argument vector is not
 773    representable for this target or if this target does not support
 774    command-line arguments.
 775    ARGC is the number of elements in the vector.
 776    ARGV is an array of strings, one per argument. */
 777
 778 typedef char * (gdbarch_construct_inferior_arguments_ftype) (struct gdbarch *gdbarch, int argc, char **argv);
 779 extern char * gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv);
 780 extern void set_gdbarch_construct_inferior_arguments (struct gdbarch *gdbarch, gdbarch_construct_inferior_arguments_ftype *construct_inferior_arguments);
 781
 782 typedef void (gdbarch_elf_make_msymbol_special_ftype) (asymbol *sym, struct minimal_symbol *msym);
 783 extern void gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, asymbol *sym, struct minimal_symbol *msym);
 784 extern void set_gdbarch_elf_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_elf_make_msymbol_special_ftype *elf_make_msymbol_special);
 785
 786 typedef void (gdbarch_coff_make_msymbol_special_ftype) (int val, struct minimal_symbol *msym);
 787 extern void gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, int val, struct minimal_symbol *msym);
 788 extern void set_gdbarch_coff_make_msymbol_special (struct gdbarch *gdbarch, gdbarch_coff_make_msymbol_special_ftype *coff_make_msymbol_special);
 789
 790 extern const char * gdbarch_name_of_malloc (struct gdbarch *gdbarch);
 791 extern void set_gdbarch_name_of_malloc (struct gdbarch *gdbarch, const char * name_of_malloc);
 792
 793 extern int gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch);
 794 extern void set_gdbarch_cannot_step_breakpoint (struct gdbarch *gdbarch, int cannot_step_breakpoint);
 795
 796 extern int gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch);
 797 extern void set_gdbarch_have_nonsteppable_watchpoint (struct gdbarch *gdbarch, int have_nonsteppable_watchpoint);
 798
 799 extern int gdbarch_address_class_type_flags_p (struct gdbarch *gdbarch);
 800
 801 typedef int (gdbarch_address_class_type_flags_ftype) (int byte_size, int dwarf2_addr_class);
 802 extern int gdbarch_address_class_type_flags (struct gdbarch *gdbarch, int byte_size, int dwarf2_addr_class);
 803 extern void set_gdbarch_address_class_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_ftype *address_class_type_flags);
 804
 805 extern int gdbarch_address_class_type_flags_to_name_p (struct gdbarch *gdbarch);
 806
 807 typedef const char * (gdbarch_address_class_type_flags_to_name_ftype) (struct gdbarch *gdbarch, int type_flags);
 808 extern const char * gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, int type_flags);
 809 extern void set_gdbarch_address_class_type_flags_to_name (struct gdbarch *gdbarch, gdbarch_address_class_type_flags_to_name_ftype *address_class_type_flags_to_name);
 810
 811 extern int gdbarch_address_class_name_to_type_flags_p (struct gdbarch *gdbarch);
 812
 813 typedef int (gdbarch_address_class_name_to_type_flags_ftype) (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 814 extern int gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, const char *name, int *type_flags_ptr);
 815 extern void set_gdbarch_address_class_name_to_type_flags (struct gdbarch *gdbarch, gdbarch_address_class_name_to_type_flags_ftype *address_class_name_to_type_flags);
 816
 817 /* Is a register in a group */
 818
 819 typedef int (gdbarch_register_reggroup_p_ftype) (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 820 extern int gdbarch_register_reggroup_p (struct gdbarch *gdbarch, int regnum, struct reggroup *reggroup);
 821 extern void set_gdbarch_register_reggroup_p (struct gdbarch *gdbarch, gdbarch_register_reggroup_p_ftype *register_reggroup_p);
 822
 823 /* Fetch the pointer to the ith function argument. */
 824
 825 extern int gdbarch_fetch_pointer_argument_p (struct gdbarch *gdbarch);
 826
 827 typedef CORE_ADDR (gdbarch_fetch_pointer_argument_ftype) (struct frame_info *frame, int argi, struct type *type);
 828 extern CORE_ADDR gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, struct frame_info *frame, int argi, struct type *type);
 829 extern void set_gdbarch_fetch_pointer_argument (struct gdbarch *gdbarch, gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument);
 830
 831 /* Return the appropriate register set for a core file section with
 832    name SECT_NAME and size SECT_SIZE. */
 833
 834 extern int gdbarch_regset_from_core_section_p (struct gdbarch *gdbarch);
 835
 836 typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 837 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 838 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
 839
 840 /* If the elements of C++ vtables are in-place function descriptors rather
 841    than normal function pointers (which may point to code or a descriptor),
 842    set this to one. */
 843
 844 extern int gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch);
 845 extern void set_gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch, int vtable_function_descriptors);
 846
 847 /* Set if the least significant bit of the delta is used instead of the least
 848    significant bit of the pfn for pointers to virtual member functions. */
 849
 850 extern int gdbarch_vbit_in_delta (struct gdbarch *gdbarch);
 851 extern void set_gdbarch_vbit_in_delta (struct gdbarch *gdbarch, int vbit_in_delta);
 852
 853 /* Advance PC to next instruction in order to skip a permanent breakpoint. */
 854
 855 extern int gdbarch_skip_permanent_breakpoint_p (struct gdbarch *gdbarch);
 856
 857 typedef void (gdbarch_skip_permanent_breakpoint_ftype) (struct regcache *regcache);
 858 extern void gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, struct regcache *regcache);
 859 extern void set_gdbarch_skip_permanent_breakpoint (struct gdbarch *gdbarch, gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint);
 860
 861 /* Refresh overlay mapped state for section OSECT. */
 862
 863 extern int gdbarch_overlay_update_p (struct gdbarch *gdbarch);
 864
 865 typedef void (gdbarch_overlay_update_ftype) (struct obj_section *osect);
 866 extern void gdbarch_overlay_update (struct gdbarch *gdbarch, struct obj_section *osect);
 867 extern void set_gdbarch_overlay_update (struct gdbarch *gdbarch, gdbarch_overlay_update_ftype *overlay_update);
 868
 869 extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch);
 870
 871
 872 /* Mechanism for co-ordinating the selection of a specific
 873    architecture.
 874
 875    GDB targets (*-tdep.c) can register an interest in a specific
 876    architecture.  Other GDB components can register a need to maintain
 877    per-architecture data.
 878
 879    The mechanisms below ensures that there is only a loose connection
 880    between the set-architecture command and the various GDB
 881    components.  Each component can independently register their need
 882    to maintain architecture specific data with gdbarch.
 883
 884    Pragmatics:
 885
 886    Previously, a single TARGET_ARCHITECTURE_HOOK was provided.  It
 887    didn't scale.
 888
 889    The more traditional mega-struct containing architecture specific
 890    data for all the various GDB components was also considered.  Since
 891    GDB is built from a variable number of (fairly independent)
 892    components it was determined that the global aproach was not
 893    applicable. */
 894
 895
 896 /* Register a new architectural family with GDB.
 897
 898    Register support for the specified ARCHITECTURE with GDB.  When
 899    gdbarch determines that the specified architecture has been
 900    selected, the corresponding INIT function is called.
 901
 902    --
 903
 904    The INIT function takes two parameters: INFO which contains the
 905    information available to gdbarch about the (possibly new)
 906    architecture; ARCHES which is a list of the previously created
 907    ``struct gdbarch'' for this architecture.
 908
 909    The INFO parameter is, as far as possible, be pre-initialized with
 910    information obtained from INFO.ABFD or the global defaults.
 911
 912    The ARCHES parameter is a linked list (sorted most recently used)
 913    of all the previously created architures for this architecture
 914    family.  The (possibly NULL) ARCHES->gdbarch can used to access
 915    values from the previously selected architecture for this
 916    architecture family.  The global ``current_gdbarch'' shall not be
 917    used.
 918
 919    The INIT function shall return any of: NULL - indicating that it
 920    doesn't recognize the selected architecture; an existing ``struct
 921    gdbarch'' from the ARCHES list - indicating that the new
 922    architecture is just a synonym for an earlier architecture (see
 923    gdbarch_list_lookup_by_info()); a newly created ``struct gdbarch''
 924    - that describes the selected architecture (see gdbarch_alloc()).
 925
 926    The DUMP_TDEP function shall print out all target specific values.
 927    Care should be taken to ensure that the function works in both the
 928    multi-arch and non- multi-arch cases. */
 929
 930 struct gdbarch_list
 931 {
 932   struct gdbarch *gdbarch;
 933   struct gdbarch_list *next;
 934 };
 935
 936 struct gdbarch_info
 937 {
 938   /* Use default: NULL (ZERO). */
 939   const struct bfd_arch_info *bfd_arch_info;
 940
 941   /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO).  */
 942   int byte_order;
 943
 944   /* Use default: NULL (ZERO). */
 945   bfd *abfd;
 946
 947   /* Use default: NULL (ZERO). */
 948   struct gdbarch_tdep_info *tdep_info;
 949
 950   /* Use default: GDB_OSABI_UNINITIALIZED (-1).  */
 951   enum gdb_osabi osabi;
 952
 953   /* Use default: NULL (ZERO).  */
 954   const struct target_desc *target_desc;
 955 };
 956
 957 typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches);
 958 typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file);
 959
 960 /* DEPRECATED - use gdbarch_register() */
 961 extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *);
 962
 963 extern void gdbarch_register (enum bfd_architecture architecture,
 964                               gdbarch_init_ftype *,
 965                               gdbarch_dump_tdep_ftype *);
 966
 967
 968 /* Return a freshly allocated, NULL terminated, array of the valid
 969    architecture names.  Since architectures are registered during the
 970    _initialize phase this function only returns useful information
 971    once initialization has been completed. */
 972
 973 extern const char **gdbarch_printable_names (void);
 974
 975
 976 /* Helper function.  Search the list of ARCHES for a GDBARCH that
 977    matches the information provided by INFO. */
 978
 979 extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info);
 980
 981
 982 /* Helper function.  Create a preliminary ``struct gdbarch''.  Perform
 983    basic initialization using values obtained from the INFO and TDEP
 984    parameters.  set_gdbarch_*() functions are called to complete the
 985    initialization of the object. */
 986
 987 extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep);
 988
 989
 990 /* Helper function.  Free a partially-constructed ``struct gdbarch''.
 991    It is assumed that the caller freeds the ``struct
 992    gdbarch_tdep''. */
 993
 994 extern void gdbarch_free (struct gdbarch *);
 995
 996
 997 /* Helper function.  Allocate memory from the ``struct gdbarch''
 998    obstack.  The memory is freed when the corresponding architecture
 999    is also freed.  */
1000
1001 extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size);
1002 #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE)))
1003 #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE)))
1004
1005
1006 /* Helper function. Force an update of the current architecture.
1007
1008    The actual architecture selected is determined by INFO, ``(gdb) set
1009    architecture'' et.al., the existing architecture and BFD's default
1010    architecture.  INFO should be initialized to zero and then selected
1011    fields should be updated.
1012
1013    Returns non-zero if the update succeeds */
1014
1015 extern int gdbarch_update_p (struct gdbarch_info info);
1016
1017
1018 /* Helper function.  Find an architecture matching info.
1019
1020    INFO should be initialized using gdbarch_info_init, relevant fields
1021    set, and then finished using gdbarch_info_fill.
1022
1023    Returns the corresponding architecture, or NULL if no matching
1024    architecture was found.  "current_gdbarch" is not updated.  */
1025
1026 extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info);
1027
1028
1029 /* Helper function.  Set the global "current_gdbarch" to "gdbarch".
1030
1031    FIXME: kettenis/20031124: Of the functions that follow, only
1032    gdbarch_from_bfd is supposed to survive.  The others will
1033    dissappear since in the future GDB will (hopefully) be truly
1034    multi-arch.  However, for now we're still stuck with the concept of
1035    a single active architecture.  */
1036
1037 extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch);
1038
1039
1040 /* Register per-architecture data-pointer.
1041
1042    Reserve space for a per-architecture data-pointer.  An identifier
1043    for the reserved data-pointer is returned.  That identifer should
1044    be saved in a local static variable.
1045
1046    Memory for the per-architecture data shall be allocated using
1047    gdbarch_obstack_zalloc.  That memory will be deleted when the
1048    corresponding architecture object is deleted.
1049
1050    When a previously created architecture is re-selected, the
1051    per-architecture data-pointer for that previous architecture is
1052    restored.  INIT() is not re-called.
1053
1054    Multiple registrarants for any architecture are allowed (and
1055    strongly encouraged).  */
1056
1057 struct gdbarch_data;
1058
1059 typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack);
1060 extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init);
1061 typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch);
1062 extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init);
1063 extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch,
1064                                          struct gdbarch_data *data,
1065                                          void *pointer);
1066
1067 extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *);
1068
1069
1070
1071 /* Register per-architecture memory region.
1072
1073    Provide a memory-region swap mechanism.  Per-architecture memory
1074    region are created.  These memory regions are swapped whenever the
1075    architecture is changed.  For a new architecture, the memory region
1076    is initialized with zero (0) and the INIT function is called.
1077
1078    Memory regions are swapped / initialized in the order that they are
1079    registered.  NULL DATA and/or INIT values can be specified.
1080
1081    New code should use gdbarch_data_register_*(). */
1082
1083 typedef void (gdbarch_swap_ftype) (void);
1084 extern void deprecated_register_gdbarch_swap (void *data, unsigned long size, gdbarch_swap_ftype *init);
1085 #define DEPRECATED_REGISTER_GDBARCH_SWAP(VAR) deprecated_register_gdbarch_swap (&(VAR), sizeof ((VAR)), NULL)
1086
1087
1088
1089 /* Set the dynamic target-system-dependent parameters (architecture,
1090    byte-order, ...) using information found in the BFD */
1091
1092 extern void set_gdbarch_from_file (bfd *);
1093
1094
1095 /* Initialize the current architecture to the "first" one we find on
1096    our list.  */
1097
1098 extern void initialize_current_architecture (void);
1099
1100 /* gdbarch trace variable */
1101 extern int gdbarch_debug;
1102
1103 extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file);
1104
1105 #endif